"298.9"^^ . . "Sandstone. Stratified bedrock. Occurs onshore. Deposited during the Permian Period (298.9-251.9 Ma BP)."@en . "stable"@en . "251.9"^^ . "Glendowran Formation"@en . . . "Glendowran Formation"@en . . "Sandstone."@en . . . "GLNN"@en . .